Finding the Fourth Proportional to 115,736.95, 159,731.72 and 64,752.54

Step by Step Solution

1. Step 1: Write the proportion equation
   115,736.95 : 159,731.72 = 64,752.54 : x
2. Step 2: Convert to fraction form
   115,736.95/159,731.72 = 64,752.54/x
3. Step 3: Cross multiply
   115,736.95x = 159,731.72 × 64,752.54
4. Step 4: Simplify right side
   115,736.95x = 10,343,034,588.57
5. Step 5: Solve for x
   x = 10,343,034,588.57/115,736.95
6. Step 6: Final answer
   x = 89,366.75